Beater for threshing-machines.



PATENTED NOV. 2'7, 19.06.

W. F. MAOGREGOR. BBATER FOR THRESHING MACHINES.

APPLICATION FILED JULY 1, 1905.

2 SHEETS-SHEETL THE mamas PETLRS co., WASHINGTON, n. c.

- Nmsms's; PA'TENTED NOV. 27, 1906. W. P. MAOGRBGQR- BEATER FORTHRESHING' MACHINES. APPLICATION FILED JULY 1, 1906.

2 BHHETB-SHEET 2.

UNITE STATES PATENT OFFICE.

WALLACE F. MAOGREGOR, OF RACINE, WISCONSIN, ASSIGNOR TO J. I. CASETHRESHING MACHINE COMPANY. OF RACINE, WISCONSIN, A

CORPORATION.

Specification of Letters Patent.

Patented Nov. 27, 1906.

Application filed July 1,1905. Serial No. 267,918.

To mil whom, it may concern:

Be it known that I, WALLAoE F. MAO- GREGOR, a citizen of the UnitedStates, and a resident of Racine, county of Racine, and State ofI/Visconsin, have invented certain new and useful Improvements inBeaters for Threshing-Machines, of which the following is declared to bea full, clear, and exact descr1pt1on.

The invention relates to beaters for thresh ing-machines and the like,and seeks to provide an improved form of construction which will belight and inexpensive, but which will also be strong and durable andeasily repaired.

The invention consists in the features of construction and arrangementsof parts hereinafter set forth, illustrated in the accompanyingdrawings, and more particularly pointed out in the appended claims.

In the drawings, Figure 1 is a section of the forward end of athreshing-machine, illustrating the location of the beater. Fig. 2 is across-section through the casing of the threshing-machine with thebeater shown partially in elevation and partially in section. Fig. 3 isan enlarged detail cross-section of the beater. Fig. 4 is a partialelevation of the exterior of the thresher-casing, showing the manner ofmounting the beater-shaft.

The thresher-casing may be of any suitable or usual form, but, as shown,comprises the sills and uprights 11, which are preferably formed ofstructural-metal bars and covered with the plate-metal sheathing 12. Thedeck 13 of the casing is supported by the longitudinal and transversedeck-bars 1 1 and 15.

The threshing-cylinder 16 is mounted upon a shaft 17 within the forwardend of the thresher-casing and above the concaves 18 and grates 19. Thestraw-rack 20 and grainconveyer 21 are of any usual or suitableconstruction and in the form shown are carried by the rock-arm 22 of thecross rock-shaft 23. The strawrack is pivotally connected to therock-arm above the shaft, and the conveyer is pivotally connected to therock-arms be low the shaft. The straw rack and conveyer are oscillatedin any suitable manner, as by means of a pitman 24, driven from thecrank-shaft. (Not shown.) The revolving beater 25 is arranged in rear ofthe cylinder and above the adjacent ends of the grate and straw-rack.The beater strikes upon the straw as it leaves the threshing-cylinderand drives the grain down through the same. It also insures that thestraw will be properly driven onto the strmv-rack.

In the construction shown the wings of the beater are formed by concavesheet-metal plates 26, extending transversely between the heads 27,which are fixed to the beatershaft 28. This form of beater has beenfound effective inasmuch as the straw cannot read ily wind thereon orbecome entangled with the beater-wings. Heretofore the concave plates 26have been nailed to wooden crossstrips extending between the heads 27Such a construction, however, was expensive and not easily repaired. Inthe present construction the transverse concave plates 26, which arepreferably formed of sheet-steel, are pro vided at their edges withcircumferentiallyextending lips or flanges 29. These lips or flanges ofthe plates overlap, as shown, and are securely riveted together, so thatthe body portion of the beater is, in effect, a hollow pipe havingradially-projecting wings 25 formed by the connected concave plates 26.

The circular heads 27 are preferably of cast metal, and their outerfaces are preferably concave or dished, as shown. Each head is providedon its inner face and adjacent its periphery with a series ofinwardly-projecting lugs 30, which snugly fit within the body portion ofthe beater and within the ends of the wings thereof. The inner faces ofthe heads are also provided with inwardly-projecting arc-shaped ribs 31,which engage the outer faces of the concave plates 26 at their ends. Thelugs 30 and ribs 31 are preferably cast in piece with the heads, asshown.

the heads to the beater-shaft 28.

In assembling the parts the plates 26 are first riveted together to formthe hollow body portion of the beater. The heads are then placed overthe ends of the body portion with the lugs 30 thereof fitting within thebeaterwings of the body portion and with the ribs 31 extending over theends of the body portion of the beater and in close contact with theends of the concave plates, so that the edges of the body portion of thebeater abut snugly against the inner faces of the heads 27. The lugs 30,as shown, are provided with Set-screws- 32 and keys 33 or other suitablemeans secure shoulder portions 34 in line With the inner face of thehead.

The body portion of the beater is not fastened permanently to the heads;but the parts are held in place by fastening the heads to thebeater-shaft 28 with the set-screws 32.

The construction of the body portion of the beater is light, butextremely strong and rigid. The lugs 30 of the heads firmly support theWings of the beater and the ribs 31 prevent the buckling of the concaveplates 26 under the influence of centrifugal force. Moreover, the beatercan be very easily taken apart for repairs, since by simply looseningthe set-screws 32 the heads 27 may be slipped from position. The bodyportion can then be readily taken out and conveniently repaired or a newone put in its place.

For convenience in removing the beater for repairs and the like thesheathing 12 opposite I the end of the beater is provided With anopening Which is closed by a plate 35, removably held in position bybolts 36. The ends of the beater-shaft 28 are carried in journal-boxes37, Which are supported upon cross anglebars 38. The angle-bars 38 aredetachably bolted to the uprights 11. (See Fig. 4.)

Beater-shaft 28 carries a pulley 39 on its outer end, which may bebelted to the powershaft of the machine in any suitable manner.

It is obvious that numerous changes can be made in the details set forthWithout departure from the essentials of the invention.

Having described my invention, What I claim as new, and desire to secureby Letters Patent, is

1 In threshing-machines, the combination of the beater comprising a bodyportion constructed of concave sheet-metal plates connected to form thebeater-Wings, heads removably fitting the ends of said body portionhaving lugs engaging the inner and outer surface thereof at its ends,the beater-shaft, and removable means for positively holding said headsin position on said shaft, substantially as described.

2. In threshingmachines, the combination of the beater comprising a bodyportion constructed of concave sheet-metal plates connected to form thebeater-Wings, heads removably fitting the ends of said body portionhaving lugs extending Wi thin the ends of said Wings and curved ribsengaging the outer faces of said plates at their ends, the beatershaft,and means removably securing said heads to said shaft, substantially asdescribed.

3. In threshing-machines, the combination With the beater-shaft, of thebeater comprising a body portion formed of concave sheetmetal platesconnected at their edges to form the beater-Wings, circular headsremovably fitting over the ends of said body portion having lu sextending Within the ends of said Wings an projections engaging theouter faces of said concave plates at their ends, and means forconnecting said heads to said beater-shaft, substantially as described.

' 4. In threshing-machines, the combination With the beater-shaft, ofthe beater comprising a body portion constructed of concave sheet-metalplates having circumferentiallyextending, overlapping edge flangesriveted together to form the beater-Wings, cast-metal heads removablyfitting over the ends of said body portion, having lugs extending Withinthe end of said Wings and curved ribs engaging the outer faces of saidconcave plates at their ends, and set-screws removably securing saidheads to said beater-shaft, substantially as described.

5. A heater for threshing-machines comprising a body portion constructedof concave sheet-metal plates forming the vvings of the beater, circularheads removably fitting over the ends of said body portion having lugsengaging the inner and outer surfaces of said body portion at its ends,a shaft and setscrews for positively but removably holding said heads inposition on said shaft, substanti ally as described.

6. A heater for threshing-machines comprising a body portion constructedof concave sheet-metal plates forming the Wings of the beater and headsremovably fitting the ends of said body portion having lugs extendingWithin the ends of said Wings and projections engaging the outer facesof said concave plates at their ends, substantially as described.

7. A beater for threshing-machines comprising a body portion constructedof concave sheet-metal plates connected at their edges to form thebeater-Wings, and heads extending over the ends of the body portion andhaving lugs extending Within the ends of said Wings and curvedprojecting ribs engaging the outer faces of said concave plates at theirends, substantially as described.

8. A beater for threshing-machines comprising a body portion formed ofconcave, sheet-metal plates having circumferentiallyextending,overlapping edge flanges riveted together and circular heads extendingover the ends of said body portion and having lugs projecting Within theends of said Wings and projections engaging the outer faces of saidconcave plates at their ends, substantially as described.

WALLACE F. MAOGREGOR.

l/Vitnesses EDWIN E. RUssELL,

FREDERICK LEE NORTON.

